The weather modification technique involves dispersing chemicals into the air to aid cloud condensation, which should, in theory, result in rain."The Department of Royal Rainmaking and Agricultural Aviation... expects the rainmaking to be done tomorrow (Tuesday) but it depends on wind and humidity levels,"said Thailand's Pollution Control Department officials.

CPCB data showed the overall air quality index (AQI) of Delhi at 412, which falls in the 'severe category', while the Centre-run System of Air Quality and Weather Forecasting (SAFAR) recorded an AQI of 388, which comes under the 'very poor' category.The SAFAR also pointed out that a consistent day-night trend is observed for the past one week.

New Delhi’s air quality turned worst on Wednesday. Smog was seen at India Gate on early morning. According to the latest Air Quality Index (AQI) data, the air quality of Delhi’s Lodhi Road area showed levels of prominent pollutants PM (particulate matter) 2.5 and PM 10 at 262 and 283 respectively.